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If an error occurs, you can check and clean the /root/.ssh/known_host file on the Linux host
If trying to execute a remote command on the Tru64 system, a message telling "no matching cipher found" is displayed, the cipher has to be setup on the Linux server side in the /root/.ssh/config file:
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How to setup ‘ssh’ trusts between Linux and VMS
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The RSH method requires the 'rsh' package. It can be installed using the following command:
# yum install rsh |
Notes
On the Tru64 system issuing the shutdown, create a proxy between the root user of the Charon server and the user.
Example ('ceres' is the Charon server name):
# echo "ceres root" >>~/.rhosts |
If the Charon server name is not known to the TCPIP database, edit the /etc/hosts file and add the server ip address and its name.
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Example ('pluto' is the Tru64 hostname):
# rsh pluto date |
If the Tru64 system time is returned, you can go directly to the Settings chapter further. If a "poll: protocol failure in circuit setup" is returned, the firewall settings have to be set to open ports 113 and 1022.
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Example for Red Hat Enterprise Linux 6.x servers:
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Example for Red Hat Enterprise Linux 7.x and CentOS 7.x servers:
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How to setup ‘rsh’ trusts between Linux and OpenVMS
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The RSH method requires the 'rsh' package. It can be installed using the following command:
# yum install rsh |
Notes
RSH and REXEC services must be available on the OpenVMS virtual machine. This depends on the OpenVMS version and a valid UCX license is required.
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Example ('ceres' is the Charon server name):
$ tcpip add proxy system /remote="root" /host=ceres |
If the Charon server name is not known to the TCPIP database, use the following command to add it.
Example:
$ tcpip set host ceres /address=1.2.3.4 |
Copy charon_shutdown.com script located in the /opt/charon/utils folder to SYS$MANAGER:CHARON_SHUTDOWN.COM on the OpenVMS system (using copy/paste for example). This is required as if the shutdown is executed directly from the 'rsh' command directly, 'rsh' will not timeout when the shutdown will be completed and the virtual machine will not be stopped cleanly, it will timeout depending on the service settings.
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Example ('vms084' is the OpenVMS hostname):
# rsh -l system vms084 "show time" |
If the OpenVMS system time is returned, you can go directly to the Settings chapter further. If a "poll: protocol failure in circuit setup" is returned, the firewall settings have to be set to open ports 113 and 1022.
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Example for Red Hat Enterprise Linux 6.x servers:
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Example for Red Hat Enterprise Linux 7.x and CentOS 7.x servers:
# firewall-cmd --permanent --new-service=Charon# firewall-cmd --permanent --service=Charon --add-port=113/tcp# firewall-cmd --permanent --service=Charon --add-port=1022/tcp# firewall-cmd --get-active-zonespublic interfaces: ens34 ens35# firewall-cmd --zone=public --permanent --add-service=Charon# firewall-cmd --reload |
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Shutdown guests with Expect tool
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- Update the service and server boot parameters as described in the appendix How to restart CHARONCharon-VAX/AXP on Linux automatically on failure
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